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#pragma once
#include "../Base.h"
#include "../events/KeyEventArgs.h"
#include "cru/base/Base.h"
#include "cru/base/Event.h"
#include "cru/platform/gui/Keyboard.h"
#include <cstddef>
#include <functional>
#include <optional>
#include <unordered_map>
#include <vector>
namespace cru::ui::helper {
class ShortcutKeyBind {
public:
ShortcutKeyBind(
platform::gui::KeyCode key,
platform::gui::KeyModifier modifier = platform::gui::KeyModifiers::none)
: key_(key), modifier_(modifier) {}
CRU_DEFAULT_COPY(ShortcutKeyBind)
CRU_DEFAULT_MOVE(ShortcutKeyBind)
~ShortcutKeyBind() = default;
platform::gui::KeyCode GetKey() const { return key_; }
platform::gui::KeyModifier GetModifier() const { return modifier_; }
ShortcutKeyBind AddModifier(platform::gui::KeyModifier modifier) const {
return ShortcutKeyBind(key_, modifier_ | modifier);
}
bool Is(platform::gui::KeyCode key,
platform::gui::KeyModifier modifier) const {
return key == key_ && modifier == modifier_;
}
bool operator==(const ShortcutKeyBind& other) const {
return this->key_ == other.key_ && this->modifier_ == other.modifier_;
}
bool operator!=(const ShortcutKeyBind& other) const {
return !this->operator==(other);
}
String ToString() const {
String result = u"(";
result += platform::gui::ToString(modifier_);
result += u")";
result += platform::gui::ToString(key_);
return result;
}
private:
platform::gui::KeyCode key_;
platform::gui::KeyModifier modifier_;
};
inline String ToString(const ShortcutKeyBind& key_bind) {
return key_bind.ToString();
}
} // namespace cru::ui::helper
namespace std {
template <>
struct hash<cru::ui::helper::ShortcutKeyBind> {
std::size_t operator()(const cru::ui::helper::ShortcutKeyBind& value) const {
std::size_t result = 0;
cru::hash_combine(result, static_cast<int>(value.GetKey()));
cru::hash_combine(result, value.GetModifier());
return result;
}
};
} // namespace std
namespace cru::ui::helper {
struct Shortcut {
// Just for debug.
String name;
ShortcutKeyBind key_bind;
// Return true if it consumes the shortcut. Or return false if it does not
// handle the shortcut.
std::function<bool()> handler;
};
struct ShortcutInfo {
int id;
String name;
ShortcutKeyBind key_bind;
std::function<bool()> handler;
};
class CRU_UI_API ShortcutHub : public Object {
CRU_DEFINE_CLASS_LOG_TAG(u"ShortcutHub")
public:
ShortcutHub() = default;
CRU_DELETE_COPY(ShortcutHub)
CRU_DELETE_MOVE(ShortcutHub)
~ShortcutHub() override = default;
int RegisterShortcut(String name, ShortcutKeyBind bind,
std::function<bool()> handler) {
return RegisterShortcut({std::move(name), bind, std::move(handler)});
}
// Return an id used for unregistering.
int RegisterShortcut(Shortcut shortcut);
void UnregisterShortcut(int id);
std::vector<ShortcutInfo> GetAllShortcuts() const;
std::optional<ShortcutInfo> GetShortcut(int id) const;
const std::vector<ShortcutInfo>& GetShortcutByKeyBind(
const ShortcutKeyBind& key_bind) const;
IEvent<events::KeyEventArgs&>* FallbackKeyEvent() { return &fallback_event_; }
void Install(controls::Control* control);
void Uninstall();
private:
void OnKeyDown(events::KeyEventArgs& event);
private:
std::unordered_map<ShortcutKeyBind, std::vector<ShortcutInfo>> map_;
std::vector<ShortcutInfo> empty_list_;
int current_id_ = 1;
Event<events::KeyEventArgs&> fallback_event_;
EventRevokerListGuard event_guard_;
};
} // namespace cru::ui::helper
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